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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* based on Ralink SDK3.3
* Copyright (C) 2009 John Crispin <blogic@openwrt.org>
*/
#ifndef RAMIPS_ETH_H
#define RAMIPS_ETH_H
#include <linux/mii.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/dma-mapping.h>
#define NUM_RX_DESC 256
#define NUM_TX_DESC 256
#define RAMIPS_DELAY_EN_INT 0x80
#define RAMIPS_DELAY_MAX_INT 0x04
#define RAMIPS_DELAY_MAX_TOUT 0x04
#define RAMIPS_DELAY_CHAN (((RAMIPS_DELAY_EN_INT | RAMIPS_DELAY_MAX_INT) << 8) | RAMIPS_DELAY_MAX_TOUT)
#define RAMIPS_DELAY_INIT ((RAMIPS_DELAY_CHAN << 16) | RAMIPS_DELAY_CHAN)
#define RAMIPS_PSE_FQFC_CFG_INIT 0x80504000
/* interrupt bits */
#define RAMIPS_CNT_PPE_AF BIT(31)
#define RAMIPS_CNT_GDM_AF BIT(29)
#define RAMIPS_PSE_P2_FC BIT(26)
#define RAMIPS_PSE_BUF_DROP BIT(24)
#define RAMIPS_GDM_OTHER_DROP BIT(23)
#define RAMIPS_PSE_P1_FC BIT(22)
#define RAMIPS_PSE_P0_FC BIT(21)
#define RAMIPS_PSE_FQ_EMPTY BIT(20)
#define RAMIPS_GE1_STA_CHG BIT(18)
#define RAMIPS_TX_COHERENT BIT(17)
#define RAMIPS_RX_COHERENT BIT(16)
#define RAMIPS_TX_DONE_INT3 BIT(11)
#define RAMIPS_TX_DONE_INT2 BIT(10)
#define RAMIPS_TX_DONE_INT1 BIT(9)
#define RAMIPS_TX_DONE_INT0 BIT(8)
#define RAMIPS_RX_DONE_INT0 BIT(2)
#define RAMIPS_TX_DLY_INT BIT(1)
#define RAMIPS_RX_DLY_INT BIT(0)
/* registers */
#define RAMIPS_FE_OFFSET 0x0000
#define RAMIPS_GDMA_OFFSET 0x0020
#define RAMIPS_PSE_OFFSET 0x0040
#define RAMIPS_GDMA2_OFFSET 0x0060
#define RAMIPS_CDMA_OFFSET 0x0080
#define RAMIPS_PDMA_OFFSET 0x0100
#define RAMIPS_PPE_OFFSET 0x0200
#define RAMIPS_CMTABLE_OFFSET 0x0400
#define RAMIPS_POLICYTABLE_OFFSET 0x1000
#define RAMIPS_MDIO_ACCESS (RAMIPS_FE_OFFSET + 0x00)
#define RAMIPS_MDIO_CFG (RAMIPS_FE_OFFSET + 0x04)
#define RAMIPS_FE_GLO_CFG (RAMIPS_FE_OFFSET + 0x08)
#define RAMIPS_FE_RST_GL (RAMIPS_FE_OFFSET + 0x0C)
#define RAMIPS_FE_INT_STATUS (RAMIPS_FE_OFFSET + 0x10)
#define RAMIPS_FE_INT_ENABLE (RAMIPS_FE_OFFSET + 0x14)
#define RAMIPS_MDIO_CFG2 (RAMIPS_FE_OFFSET + 0x18)
#define RAMIPS_FOC_TS_T (RAMIPS_FE_OFFSET + 0x1C)
#define RAMIPS_GDMA1_FWD_CFG (RAMIPS_GDMA_OFFSET + 0x00)
#define RAMIPS_GDMA1_SCH_CFG (RAMIPS_GDMA_OFFSET + 0x04)
#define RAMIPS_GDMA1_SHPR_CFG (RAMIPS_GDMA_OFFSET + 0x08)
#define RAMIPS_GDMA1_MAC_ADRL (RAMIPS_GDMA_OFFSET + 0x0C)
#define RAMIPS_GDMA1_MAC_ADRH (RAMIPS_GDMA_OFFSET + 0x10)
#define RAMIPS_GDMA2_FWD_CFG (RAMIPS_GDMA2_OFFSET + 0x00)
#define RAMIPS_GDMA2_SCH_CFG (RAMIPS_GDMA2_OFFSET + 0x04)
#define RAMIPS_GDMA2_SHPR_CFG (RAMIPS_GDMA2_OFFSET + 0x08)
#define RAMIPS_GDMA2_MAC_ADRL (RAMIPS_GDMA2_OFFSET + 0x0C)
#define RAMIPS_GDMA2_MAC_ADRH (RAMIPS_GDMA2_OFFSET + 0x10)
#define RAMIPS_PSE_FQ_CFG (RAMIPS_PSE_OFFSET + 0x00)
#define RAMIPS_CDMA_FC_CFG (RAMIPS_PSE_OFFSET + 0x04)
#define RAMIPS_GDMA1_FC_CFG (RAMIPS_PSE_OFFSET + 0x08)
#define RAMIPS_GDMA2_FC_CFG (RAMIPS_PSE_OFFSET + 0x0C)
#define RAMIPS_CDMA_CSG_CFG (RAMIPS_CDMA_OFFSET + 0x00)
#define RAMIPS_CDMA_SCH_CFG (RAMIPS_CDMA_OFFSET + 0x04)
#define RAMIPS_PDMA_GLO_CFG (RAMIPS_PDMA_OFFSET + 0x00)
#define RAMIPS_PDMA_RST_CFG (RAMIPS_PDMA_OFFSET + 0x04)
#define RAMIPS_PDMA_SCH_CFG (RAMIPS_PDMA_OFFSET + 0x08)
#define RAMIPS_DLY_INT_CFG (RAMIPS_PDMA_OFFSET + 0x0C)
#define RAMIPS_TX_BASE_PTR0 (RAMIPS_PDMA_OFFSET + 0x10)
#define RAMIPS_TX_MAX_CNT0 (RAMIPS_PDMA_OFFSET + 0x14)
#define RAMIPS_TX_CTX_IDX0 (RAMIPS_PDMA_OFFSET + 0x18)
#define RAMIPS_TX_DTX_IDX0 (RAMIPS_PDMA_OFFSET + 0x1C)
#define RAMIPS_TX_BASE_PTR1 (RAMIPS_PDMA_OFFSET + 0x20)
#define RAMIPS_TX_MAX_CNT1 (RAMIPS_PDMA_OFFSET + 0x24)
#define RAMIPS_TX_CTX_IDX1 (RAMIPS_PDMA_OFFSET + 0x28)
#define RAMIPS_TX_DTX_IDX1 (RAMIPS_PDMA_OFFSET + 0x2C)
#define RAMIPS_RX_BASE_PTR0 (RAMIPS_PDMA_OFFSET + 0x30)
#define RAMIPS_RX_MAX_CNT0 (RAMIPS_PDMA_OFFSET + 0x34)
#define RAMIPS_RX_CALC_IDX0 (RAMIPS_PDMA_OFFSET + 0x38)
#define RAMIPS_RX_DRX_IDX0 (RAMIPS_PDMA_OFFSET + 0x3C)
#define RAMIPS_TX_BASE_PTR2 (RAMIPS_PDMA_OFFSET + 0x40)
#define RAMIPS_TX_MAX_CNT2 (RAMIPS_PDMA_OFFSET + 0x44)
#define RAMIPS_TX_CTX_IDX2 (RAMIPS_PDMA_OFFSET + 0x48)
#define RAMIPS_TX_DTX_IDX2 (RAMIPS_PDMA_OFFSET + 0x4C)
#define RAMIPS_TX_BASE_PTR3 (RAMIPS_PDMA_OFFSET + 0x50)
#define RAMIPS_TX_MAX_CNT3 (RAMIPS_PDMA_OFFSET + 0x54)
#define RAMIPS_TX_CTX_IDX3 (RAMIPS_PDMA_OFFSET + 0x58)
#define RAMIPS_TX_DTX_IDX3 (RAMIPS_PDMA_OFFSET + 0x5C)
#define RAMIPS_RX_BASE_PTR1 (RAMIPS_PDMA_OFFSET + 0x60)
#define RAMIPS_RX_MAX_CNT1 (RAMIPS_PDMA_OFFSET + 0x64)
#define RAMIPS_RX_CALC_IDX1 (RAMIPS_PDMA_OFFSET + 0x68)
#define RAMIPS_RX_DRX_IDX1 (RAMIPS_PDMA_OFFSET + 0x6C)
/* MDIO_CFG register bits */
#define RAMIPS_MDIO_CFG_AUTO_POLL_EN BIT(29)
#define RAMIPS_MDIO_CFG_GP1_BP_EN BIT(16)
#define RAMIPS_MDIO_CFG_GP1_FRC_EN BIT(15)
#define RAMIPS_MDIO_CFG_GP1_SPEED_10 (0 << 13)
#define RAMIPS_MDIO_CFG_GP1_SPEED_100 (1 << 13)
#define RAMIPS_MDIO_CFG_GP1_SPEED_1000 (2 << 13)
#define RAMIPS_MDIO_CFG_GP1_DUPLEX BIT(12)
#define RAMIPS_MDIO_CFG_GP1_FC_TX BIT(11)
#define RAMIPS_MDIO_CFG_GP1_FC_RX BIT(10)
#define RAMIPS_MDIO_CFG_GP1_LNK_DWN BIT(9)
#define RAMIPS_MDIO_CFG_GP1_AN_FAIL BIT(8)
#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_1 (0 << 6)
#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_2 (1 << 6)
#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_4 (2 << 6)
#define RAMIPS_MDIO_CFG_MDC_CLK_DIV_8 (3 << 6)
#define RAMIPS_MDIO_CFG_TURBO_MII_FREQ BIT(5)
#define RAMIPS_MDIO_CFG_TURBO_MII_MODE BIT(4)
#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_0 (0 << 2)
#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_200 (1 << 2)
#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_400 (2 << 2)
#define RAMIPS_MDIO_CFG_RX_CLK_SKEW_INV (3 << 2)
#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_0 0
#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 1
#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_400 2
#define RAMIPS_MDIO_CFG_TX_CLK_SKEW_INV 3
/* uni-cast port */
#define RAMIPS_GDM1_ICS_EN BIT(22)
#define RAMIPS_GDM1_TCS_EN BIT(21)
#define RAMIPS_GDM1_UCS_EN BIT(20)
#define RAMIPS_GDM1_JMB_EN BIT(19)
#define RAMIPS_GDM1_STRPCRC BIT(16)
#define RAMIPS_GDM1_UFRC_P_CPU (0 << 12)
#define RAMIPS_GDM1_UFRC_P_GDMA1 (1 << 12)
#define RAMIPS_GDM1_UFRC_P_PPE (6 << 12)
/* checksums */
#define RAMIPS_ICS_GEN_EN BIT(2)
#define RAMIPS_UCS_GEN_EN BIT(1)
#define RAMIPS_TCS_GEN_EN BIT(0)
/* dma ring */
#define RAMIPS_PST_DRX_IDX0 BIT(16)
#define RAMIPS_PST_DTX_IDX3 BIT(3)
#define RAMIPS_PST_DTX_IDX2 BIT(2)
#define RAMIPS_PST_DTX_IDX1 BIT(1)
#define RAMIPS_PST_DTX_IDX0 BIT(0)
#define RAMIPS_TX_WB_DDONE BIT(6)
#define RAMIPS_RX_DMA_BUSY BIT(3)
#define RAMIPS_TX_DMA_BUSY BIT(1)
#define RAMIPS_RX_DMA_EN BIT(2)
#define RAMIPS_TX_DMA_EN BIT(0)
#define RAMIPS_PDMA_SIZE_4DWORDS (0 << 4)
#define RAMIPS_PDMA_SIZE_8DWORDS (1 << 4)
#define RAMIPS_PDMA_SIZE_16DWORDS (2 << 4)
#define RAMIPS_US_CYC_CNT_MASK 0xff
#define RAMIPS_US_CYC_CNT_SHIFT 0x8
#define RAMIPS_US_CYC_CNT_DIVISOR 1000000
#define RX_DMA_PLEN0(_x) (((_x) >> 16) & 0x3fff)
#define RX_DMA_LSO BIT(30)
#define RX_DMA_DONE BIT(31)
struct ramips_rx_dma {
unsigned int rxd1;
unsigned int rxd2;
unsigned int rxd3;
unsigned int rxd4;
};
#define TX_DMA_PLEN0_MASK ((0x3fff) << 16)
#define TX_DMA_PLEN0(_x) (((_x) & 0x3fff) << 16)
#define TX_DMA_LSO BIT(30)
#define TX_DMA_DONE BIT(31)
#define TX_DMA_QN(_x) ((_x) << 16)
#define TX_DMA_PN(_x) ((_x) << 24)
#define TX_DMA_QN_MASK TX_DMA_QN(0x7)
#define TX_DMA_PN_MASK TX_DMA_PN(0x7)
struct ramips_tx_dma {
unsigned int txd1;
unsigned int txd2;
unsigned int txd3;
unsigned int txd4;
};
struct raeth_priv
{
dma_addr_t rx_desc_dma;
struct tasklet_struct rx_tasklet;
struct ramips_rx_dma *rx;
struct sk_buff *rx_skb[NUM_RX_DESC];
dma_addr_t rx_dma[NUM_RX_DESC];
dma_addr_t tx_desc_dma;
struct tasklet_struct tx_housekeeping_tasklet;
struct ramips_tx_dma *tx;
struct sk_buff *tx_skb[NUM_TX_DESC];
unsigned int skb_free_idx;
spinlock_t page_lock;
struct net_device *netdev;
struct ramips_eth_platform_data *plat;
int speed;
int duplex;
int tx_fc;
int rx_fc;
};
#endif /* RAMIPS_ETH_H */
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